Marathon fatigue: the role of plasma fatty acids, muscle glycogen and blood glucose

  title={Marathon fatigue: the role of plasma fatty acids, muscle glycogen and blood glucose},
  author={Marinella Callow and Adam Morton and Michael Guppy},
  journal={European Journal of Applied Physiology and Occupational Physiology},
The role of carbohydrate depletion in marathon fatigue was examined in 6 marathon runs. Four of the runs were potentially ‘fast-time’ marathons and culminated in fatigue. The utilization of carbohydrate, lipid and protein, and plasma concentrations of free fatty acids (FFA), glucose and lactate were measured at intervals throughout the runs. The contribution from protein to energy output was low (1–2%). The utilization of lipid was dependent upon plasma concentrations of FFA, which rose… CONTINUE READING

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